<p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;">　　答 尿素可作为一种活化剂促进双氧水活化分解，双氧水和尿素相互作用首先形成一种络合物，然后分解产生自由羟基H0·，再分解产生自由过羟基HOO·。加入尿素能提高织物白度，主要由于酰胺类化合物的作用。由于麻纤维的色素和木质素含量较高、伸长小、结晶度高、染色性差，使麻棉混纺织物的前处理比纯棉织物难度大，如用纯棉织物的常规漂白工艺难以达到理想的效果，为此提出了以尿素为活性剂的双氧水煮漂新工艺。具体实例为：麻／棉织物（55／45）90.9texX 90.9tex（510根／10cmX470根／10cm）。工艺处方及条件：H2O2（100％）6g／L，尿素8g／L，pH值8～9，温度98～100℃，时间60min，浴比1：20。半制品质量测试为：白度82.3％；毛效：经11.6cm／30min，纬10.8cm／30min；强力：经529N，纬417N；手感好。实践证明采用双氧水一尿素漂白工艺对麻棉混纺织物去杂效果好，白度优于常规工艺，强度损失少。</p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;"></p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;">　　</p><section class="_135editor" data-role="paragraph" id="autoparagraph" style="max-inline-size: 100%; margin: 0px; padding: 0px; border: 0px none; z-index: 0; overflow-wrap: break-word !important; outline: none 0px !important;"><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; font-family: 微软雅黑, &quot;Microsoft YaHei&quot;, sans-serif; font-size: 17px; caret-color: rgb(255, 0, 0); overflow-wrap: break-word !important; outline: none 0px !important;"></p></section>